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Finding the Fourth Proportional to 52,742.38, 79,126.52 and 15,806.38

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Solution

The fourth proportional to 52,742.38, 79,126.52 and 15,806.38 is: 23,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.38 : 79,126.52 = 15,806.38 : x
  2. Step 2: Convert to fraction form
    52,742.38/79,126.52 = 15,806.38/x
  3. Step 3: Cross multiply
    52,742.38x = 79,126.52 × 15,806.38
  4. Step 4: Simplify right side
    52,742.38x = 1,250,703,843.20
  5. Step 5: Solve for x
    x = 1,250,703,843.20/52,742.38
  6. Step 6: Final answer
    x = 23,713.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.